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Mirrors > Home > MPE Home > Th. List > tmsms | Structured version Visualization version GIF version |
Description: The constructed metric space is a metric space given a metric. (Contributed by Mario Carneiro, 2-Sep-2015.) |
Ref | Expression |
---|---|
tmsbas.k | ⊢ 𝐾 = (toMetSp‘𝐷) |
Ref | Expression |
---|---|
tmsms | ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐾 ∈ MetSp) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | metxmet 23049 | . . 3 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐷 ∈ (∞Met‘𝑋)) | |
2 | tmsbas.k | . . . 4 ⊢ 𝐾 = (toMetSp‘𝐷) | |
3 | 2 | tmsxms 23201 | . . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐾 ∈ ∞MetSp) |
4 | 1, 3 | syl 17 | . 2 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐾 ∈ ∞MetSp) |
5 | 2 | tmsds 23199 | . . . . . 6 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐷 = (dist‘𝐾)) |
6 | 1, 5 | syl 17 | . . . . 5 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐷 = (dist‘𝐾)) |
7 | 2 | tmsbas 23198 | . . . . . . 7 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑋 = (Base‘𝐾)) |
8 | 1, 7 | syl 17 | . . . . . 6 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝑋 = (Base‘𝐾)) |
9 | 8 | fveq2d 6667 | . . . . 5 ⊢ (𝐷 ∈ (Met‘𝑋) → (Met‘𝑋) = (Met‘(Base‘𝐾))) |
10 | 6, 9 | eleq12d 2846 | . . . 4 ⊢ (𝐷 ∈ (Met‘𝑋) → (𝐷 ∈ (Met‘𝑋) ↔ (dist‘𝐾) ∈ (Met‘(Base‘𝐾)))) |
11 | 10 | ibi 270 | . . 3 ⊢ (𝐷 ∈ (Met‘𝑋) → (dist‘𝐾) ∈ (Met‘(Base‘𝐾))) |
12 | ssid 3916 | . . 3 ⊢ (Base‘𝐾) ⊆ (Base‘𝐾) | |
13 | metres2 23078 | . . 3 ⊢ (((dist‘𝐾) ∈ (Met‘(Base‘𝐾)) ∧ (Base‘𝐾) ⊆ (Base‘𝐾)) → ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) ∈ (Met‘(Base‘𝐾))) | |
14 | 11, 12, 13 | sylancl 589 | . 2 ⊢ (𝐷 ∈ (Met‘𝑋) → ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) ∈ (Met‘(Base‘𝐾))) |
15 | eqid 2758 | . . 3 ⊢ (TopOpen‘𝐾) = (TopOpen‘𝐾) | |
16 | eqid 2758 | . . 3 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
17 | eqid 2758 | . . 3 ⊢ ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) = ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) | |
18 | 15, 16, 17 | isms 23164 | . 2 ⊢ (𝐾 ∈ MetSp ↔ (𝐾 ∈ ∞MetSp ∧ ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) ∈ (Met‘(Base‘𝐾)))) |
19 | 4, 14, 18 | sylanbrc 586 | 1 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐾 ∈ MetSp) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 ∈ wcel 2111 ⊆ wss 3860 × cxp 5526 ↾ cres 5530 ‘cfv 6340 Basecbs 16554 distcds 16645 TopOpenctopn 16766 ∞Metcxmet 20164 Metcmet 20165 ∞MetSpcxms 23032 MetSpcms 23033 toMetSpctms 23034 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2729 ax-rep 5160 ax-sep 5173 ax-nul 5180 ax-pow 5238 ax-pr 5302 ax-un 7465 ax-cnex 10644 ax-resscn 10645 ax-1cn 10646 ax-icn 10647 ax-addcl 10648 ax-addrcl 10649 ax-mulcl 10650 ax-mulrcl 10651 ax-mulcom 10652 ax-addass 10653 ax-mulass 10654 ax-distr 10655 ax-i2m1 10656 ax-1ne0 10657 ax-1rid 10658 ax-rnegex 10659 ax-rrecex 10660 ax-cnre 10661 ax-pre-lttri 10662 ax-pre-lttrn 10663 ax-pre-ltadd 10664 ax-pre-mulgt0 10665 ax-pre-sup 10666 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-fal 1551 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2557 df-eu 2588 df-clab 2736 df-cleq 2750 df-clel 2830 df-nfc 2901 df-ne 2952 df-nel 3056 df-ral 3075 df-rex 3076 df-reu 3077 df-rmo 3078 df-rab 3079 df-v 3411 df-sbc 3699 df-csb 3808 df-dif 3863 df-un 3865 df-in 3867 df-ss 3877 df-pss 3879 df-nul 4228 df-if 4424 df-pw 4499 df-sn 4526 df-pr 4528 df-tp 4530 df-op 4532 df-uni 4802 df-iun 4888 df-br 5037 df-opab 5099 df-mpt 5117 df-tr 5143 df-id 5434 df-eprel 5439 df-po 5447 df-so 5448 df-fr 5487 df-we 5489 df-xp 5534 df-rel 5535 df-cnv 5536 df-co 5537 df-dm 5538 df-rn 5539 df-res 5540 df-ima 5541 df-pred 6131 df-ord 6177 df-on 6178 df-lim 6179 df-suc 6180 df-iota 6299 df-fun 6342 df-fn 6343 df-f 6344 df-f1 6345 df-fo 6346 df-f1o 6347 df-fv 6348 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7586 df-1st 7699 df-2nd 7700 df-wrecs 7963 df-recs 8024 df-rdg 8062 df-1o 8118 df-er 8305 df-map 8424 df-en 8541 df-dom 8542 df-sdom 8543 df-fin 8544 df-sup 8952 df-inf 8953 df-pnf 10728 df-mnf 10729 df-xr 10730 df-ltxr 10731 df-le 10732 df-sub 10923 df-neg 10924 df-div 11349 df-nn 11688 df-2 11750 df-3 11751 df-4 11752 df-5 11753 df-6 11754 df-7 11755 df-8 11756 df-9 11757 df-n0 11948 df-z 12034 df-dec 12151 df-uz 12296 df-q 12402 df-rp 12444 df-xneg 12561 df-xadd 12562 df-xmul 12563 df-fz 12953 df-struct 16556 df-ndx 16557 df-slot 16558 df-base 16560 df-sets 16561 df-tset 16655 df-ds 16658 df-rest 16767 df-topn 16768 df-topgen 16788 df-psmet 20171 df-xmet 20172 df-met 20173 df-bl 20174 df-mopn 20175 df-top 21607 df-topon 21624 df-topsp 21646 df-bases 21659 df-xms 23035 df-ms 23036 df-tms 23037 |
This theorem is referenced by: (None) |
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